:root {
  --ink: #0b0b0c;
  --paper: #ffffff;
  --muted: #5b5d63;
  --line: #e4e4e7;
  --soft: #f5f5f6;
  --accent: #0b0b0c;
  --ok: #157f3b;
  --err: #b42318;
  --radius: 14px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; }
a { color: inherit; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 750; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }

.wrap { width: min(1120px, 100% - 2.5rem); margin: 0 auto; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }

/* Header */
.top {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.top .bar { height: 68px; }
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; font-weight: 800; font-size: 1.2rem; letter-spacing: -0.02em; }
.brand img { border-radius: 8px; }
nav { display: flex; align-items: center; gap: 1.6rem; }
nav a { text-decoration: none; color: var(--muted); font-weight: 500; }
nav a:hover { color: var(--ink); }

/* Buttons */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  border: 1.5px solid var(--ink);
  background: var(--ink); color: var(--paper) !important;
  font: inherit; font-weight: 600;
  text-decoration: none; cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.button:hover { transform: translateY(-1px); }
.button:disabled { opacity: 0.5; cursor: progress; transform: none; }
.button.ghost { background: transparent; color: var(--ink) !important; }
.button.ghost:hover { background: var(--ink); color: var(--paper) !important; }
.button.small { padding: 0.5rem 1rem; font-size: 0.95rem; }

/* Hero */
.hero {
  padding: clamp(5rem, 12vw, 9rem) 0 clamp(4rem, 10vw, 7rem);
  background:
    radial-gradient(circle at 85% 20%, rgba(0, 0, 0, 0.06), transparent 40%),
    linear-gradient(var(--paper), var(--soft));
  border-bottom: 1px solid var(--line);
}
.hero h1 { max-width: 14ch; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.8rem; font-weight: 600; color: var(--muted); }
.lead { font-size: clamp(1.1rem, 2vw, 1.3rem); color: var(--muted); max-width: 58ch; }
.actions { display: flex; gap: 0.8rem; flex-wrap: wrap; margin-top: 2rem; }

/* Sections */
.section { padding: clamp(4rem, 9vw, 6.5rem) 0; }
.section.alt { background: var(--ink); color: var(--paper); }
.sub { color: var(--muted); font-size: 1.1rem; max-width: 52ch; }
.split { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 2.5rem; }
.card {
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: var(--ink); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07); transform: translateY(-2px); }
.card p { color: var(--muted); margin: 0; }

.steps { list-style: none; padding: 0; margin: 2.5rem 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.steps li { border-top: 1px solid rgba(255, 255, 255, 0.25); padding-top: 1.25rem; }
.steps p { color: #b8b9bf; margin: 0; }
.num {
  display: inline-grid; place-items: center;
  width: 2.2rem; height: 2.2rem; margin-bottom: 0.9rem;
  border-radius: 50%; background: var(--paper); color: var(--ink); font-weight: 800;
}

.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.1rem; }
.ticks li { position: relative; padding-left: 2.2rem; color: var(--muted); }
.ticks li strong { color: var(--ink); }
.ticks li::before {
  content: "✓"; position: absolute; left: 0; top: 0.1rem;
  width: 1.5rem; height: 1.5rem; display: grid; place-items: center;
  border-radius: 50%; background: var(--ink); color: var(--paper); font-size: 0.8rem; font-weight: 700;
}

/* Contact */
.contact { background: var(--soft); border-top: 1px solid var(--line); }
.note { color: var(--muted); font-weight: 600; }
.form {
  display: grid; gap: 1rem;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.06);
}
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form label { display: grid; gap: 0.35rem; font-weight: 600; font-size: 0.95rem; }
.optional { color: var(--muted); font-weight: 400; }
.form input, .form textarea {
  font: inherit; font-weight: 400;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form textarea { resize: vertical; min-height: 8rem; }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1); }
.form .button { justify-self: start; }
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.status { margin: 0; min-height: 1.5em; font-weight: 600; }
.status[data-kind="ok"] { color: var(--ok); }
.status[data-kind="error"] { color: var(--err); }
.status[data-kind="busy"] { color: var(--muted); }

/* Footer */
.foot { border-top: 1px solid var(--line); padding: 2rem 0; color: var(--muted); font-size: 0.95rem; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--ink); }

@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  nav a:not(.button) { display: none; }
  .grid, .steps, .form .row { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}